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P0790

Overview

Code

P0790

Code Type

P

Code Class

P0

System

Transmission

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0790 indicates a malfunction in the transmission input speed sensor

Symptoms

Slipping transmission Poor acceleration

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Transmission input speed sensor

Possible Causes

Faulty input speed sensor Wiring issues

Diagnostic Steps

1 Inspect input speed sensor2 Test sensor output

Drive Safety Notes

A malfunctioning input speed sensor can lead to engine misfires and poor transmission performance

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